... 11cm densely packed stick generates intense heat· Rigid roll contains moxa and other herbs· Burns at approximatedly 40 minutes per ... e. elderly, patients with nerve damage, etc). When using needle moxa, a protective shield, (i.e. aluminum foil), must be ... For patient safety, do not use moxa rolls or any moxa product if damaged or cracked. Smokeless moxa roll with hollow center moxibustion products